12-19-2016
Dear
HemaV,
I have a few to questions pose in response first:-
- Is this homework/assignment? There are specific forums for these.
- What have you tried so far?
- Can you show us some sample input?
- What output/errors do you get?
- What OS and version are you using?
- What are your preferred tools? (C, shell, perl, awk, etc.)
- What logical process have you considered? (to help steer us to follow what you are trying to achieve)
Most importantly,
What have you tried so far?
There are probably many ways to achieve most tasks, so giving us an idea of your style and thoughts will help us guide you to an answer most suitable to you so you can adjust it to suit your needs in future.
We're all here to learn and getting the relevant information will help us all.
Kind regards,
Robin
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LEARN ABOUT DEBIAN
srec_ascii_hex
srec_ascii_hex(5) File Formats Manual srec_ascii_hex(5)
NAME
srec_ascii_hex - Ascii-Hex file format
DESCRIPTION
This format is also known as the Ascii-Space-Hex or Ascii-Hex-Space format. If you know who invented this format, please let me know. If
you have a better or more complete description, I'd like to know that, too.
The file starts with a start-of-text (STX or Control-B) character (0x02). Everything before the STX is ignored.
Each data byte is represented as 2 hexadecimal characters, followed by an "execution character". The default execution character is a
space, although many programs which write this format omit the space character immediately preceding end-of-line.
The address for data bytes is set by using a sequence of $Annnn, characters, where nnnn is the 4-character ascii representation of the
address. The comma is required. There is no need for an address record unless there are gaps. Implicitly, the file starts a address 0 if
no address is set before the first data byte.
The file ends with an end-of-text (ETX or Control-C) character (0x03). Everything following the ETX is ignored.
It is also possible to specify a running 16-bit checksum using a sequence of $Snnnn, characters, although this usually appears after the
ETX character and is thus often ignored.
Variant Forms
In addition to a space character, the execution character can also be percent (%) called "ascii-hex-percent" format, apostrophe (') or
comma (,) called "ascii-hex-comma" format. The file must use the same execution character throughout.
If the execution character is a comma, the address and checksum commands are terminated by a dot (.) rather than a comma (,).
Size Multiplier
In general, binary data will expand in sized by approximately 3.0 times when represented with this format.
EXAMPLE
Here is an example ascii-hex file. It contains the data "Hello, World[rq] to be loaded at address 0x1000.
^B $A1000,
48 65 6C 6C 6F 2C 20 57 6F 72 6C 64 0A ^C
COPYRIGHT
srec_cat version 1.58
Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Peter Miller
The srec_cat program comes with ABSOLUTELY NO WARRANTY; for details use the 'srec_cat -VERSion License' command. This is free software and
you are welcome to redistribute it under certain conditions; for details use the 'srec_cat -VERSion License' command.
AUTHOR
Peter Miller E-Mail: pmiller@opensource.org.au
//* WWW: http://miller.emu.id.au/pmiller/
Reference Manual SRecord srec_ascii_hex(5)